Second generation 65-GSa/s 8-bit ADC technology focuses on 100G optical transport
September 13, 2010 // Paul Buckley
Fujitsu Semiconductor Europe announces its second generation 8-bit CHArge-mode Interleaved Sampler (CHAIS) ADC for optical transport designs based on coherent detection. The new generation supports data rates from 55 to 65 GSa/s and is based on the same ADC architecture as Fujitsu's 56 GSa/s CHAIS ADC in 65 nm.
The device offers the ultra-fast sampling rates, wideband input, low noise and high resolution required for long-haul links with data rates of 100Gbps and higher over a single wavelength.
Implemented in a high-performance 0.9 V 40 nm CMOS technology, the 65 GSa/s CHAIS ADC surpasses even the low power performance of the first generation and will support higher FEC overheads for longer reach. The fundamentals of the CHAIS architecture allow for scalability to even higher sampling rates for future transport data rates (400 Gbps/1Tbps) and power dissipation that scales with smaller process feature size. Typical power dissipation for a single CHAIS ADC channel in 40 nm is only 1.2 W, down 50% from the power per channel in 65 nm.
Fujitsu's 4-channel CMOS design allows for more efficient integration with coherent receiver digital cores, typically comprising tens of millions of logic gates and a multi-terabit data transfer rate across the interface between core and ADCs. For the design of single-die transceiver SoCs in 40 nm, the Fujitsu IP offering includes high speed 11Gbps SerDes, supporting a range of protocols and data rates, and will also include a complementary high speed 55 to 65 GSa/s 8-bit DAC.
Fujitsu Semiconductor Europe will be demonstrating the 65GSa/s CHAIS performance at the European Conference on Optical Communications (ECOC) in Turin, Italy later this month. As with the previous generation CHAIS ADC technology, a development kit for the 65GSa/s ADC will be available in January 2011 for customers to evaluate their modulation and FEC algorithm performance using silicon based on field-proven architectures.
More information about the Fujitsu Semiconductor Europe 8-bit (CHAIS) ADC at
German company wins bid to crash cars in China
September 02, 2014
Numerous developments in the area of vehicle safety are significantly influenced as a result of current NCAP or NHTSA regulations ...
European semiconductors sales up 14.9% this year
EE Times' annual salary & opinion survey report
Toshiba announces image sensor strategy
DelfMEMS promotes CFO to CEO
Sensata to pay $1-bn for tire pressure sensor leader
September 01, 2014
Sensata Technologies Holding NV (Almelo, Netherlands) has announced it has reached an agreement to acquire the Schrader group ...
ADCs for high dynamic range – successive-approximation or sigma-delta?
Microchip in Pursuit of CSR
Samsung Funds III-V FinFETs in US Lab
- Power Modules: The New Super Power
- Flexible Performance for Network Security Appliances
- Digital Power Management Reduces Energy Costs While Improving System Performance
- Using RF Recording Techniques to Resolve Interference Problems
InterviewA question of Europe
Sir Peter Bonfield sits on the board and has advisory roles in many international companies and universities. With more than 45 years of experience in electronics, computers and communications, here he ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Trinamic Motion Control is offering you to win one of four TMCM-1043 development kits for its highly integrated, NEMA 17-compatible TMCM-1043 stepDancer stepper motor module.
Offering designers an easy-to-use PC-based GUI that allows one-click modification of motor drive current, micro-stepping and other key parameters, the intuitive kits are custom designed and developed for...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.